1
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Shetty SS, Sharma M, Padam KSR, Kudva A, Patel P, Radhakrishnan R. The interplay of EMT and stemness driving malignant transformation of Oral Submucous Fibrosis. J Oral Biol Craniofac Res 2024; 14:63-71. [PMID: 38261875 PMCID: PMC10794927 DOI: 10.1016/j.jobcr.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/16/2023] [Accepted: 12/23/2023] [Indexed: 01/25/2024] Open
Abstract
Background Oral submucous fibrosis (OSF) is a persistent oral mucosal condition that carries an elevated risk of undergoing malignant transformation. Our objective was to elucidate the involvement of epithelial-to-mesenchymal transition (EMT) in OSF and its progression to malignancy by studying a panel of EMT markers, thereby understanding the molecular mechanisms. Methods An immunohistochemical analysis was done to detect the presence of E-cadherin, N-cadherin, pan-cytokeratin (PanCK), vimentin, α-SMA (alpha-smooth muscle actin), and CD44 in a total of 100 tissue samples. These samples comprised 40 cases of OSF, 20 cases of oral squamous cell carcinoma associated with OSF (OSFSCC), and 40 cases of oral squamous cell carcinoma (OSCC). A whole transcriptomic analysis was performed on a group of seven matched samples encompassing NOM, OSF, OSFSCC, and OSCC. Results We observed significantly decreased expression of E-cadherin and PanCK, while N-cadherin, vimentin, α-SMA, and CD44 showed significantly higher expression in OSFSCC and OSCC as compared to OSF, both at protein and RNA levels. CD44 expression was noticeably higher in OSFSCC (p < 0.001) than in OSCC. Conclusion Downregulation of epithelial markers with concomitant upregulation of mesenchymal and stem cell markers suggests the potential role of EMT and stemness in accelerating the pathogenesis and malignant transformation of OSF. The high levels of CD44 expression seen in OSFSCC indicate a high propensity for aggressiveness and acquisition of stem-like characteristics by the cells undergoing EMT.
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Affiliation(s)
- Smitha Sammith Shetty
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Mohit Sharma
- Department of Oral Pathology, SGT Dental College Hospital & Research Institute, Gurugram, Haryana, 122505, India
| | - Kanaka Sai Ram Padam
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Adarsh Kudva
- Department of Oral and Maxillofacial Surgery, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Pratik Patel
- Sangee Oral Pathology Center, Haripura, Surat, Gujarat, 395003, India
| | - Raghu Radhakrishnan
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
- Department of Oral and Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, S102TA, UK
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You JR, Chen YT, Hsieh CY, Chen SY, Lin TY, Shih JS, Chen GT, Feng SW, Peng TY, Wu CY, Lee IT. Exploring Possible Diagnostic Precancerous Biomarkers for Oral Submucous Fibrosis: A Narrative Review. Cancers (Basel) 2023; 15:4812. [PMID: 37835505 PMCID: PMC10571555 DOI: 10.3390/cancers15194812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Oral submucous fibrosis (OSF) stands as a progressive oral ailment, designated as a potentially malignant disorder. OSF has gained widespread recognition as a significant precursor to malignant transformation. In the pursuit of dependable, straightforward, and non-invasive diagnostic measures for the early detection of oral malignant progression, research has delved into potential diagnostic biomarkers of OSF. This comprehensive review delves into current investigations that explore the correlation between various biomarkers and OSF. The molecular biomarkers of OSF are categorized based on cytology and sampling methods. Moreover, this review encompasses pertinent studies detailing how these biomarkers are acquired and processed. Within this scope, we scrutinize four potential biomarkers that hold the promise of facilitating the development of diagnostic tools for detecting early-stage OSF.
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Affiliation(s)
- Jie-Ru You
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Ya-Ting Chen
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Chia-Yu Hsieh
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Sin-Yu Chen
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Tzu-Yao Lin
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Jing-Syuan Shih
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Guan-Ting Chen
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Sheng-Wei Feng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Tzu-Yu Peng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
| | - Chia-Yu Wu
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, Taipei Medical University Hospital, Taipei 11031, Taiwan
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - I-Ta Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan; (J.-R.Y.); (Y.-T.C.); (C.-Y.H.); (S.-Y.C.); (T.-Y.L.); (J.-S.S.); (G.-T.C.); (S.-W.F.); (T.-Y.P.)
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3
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Oey O, Sunjaya AF, Khan Y, Redfern A. Stromal inflammation, fibrosis and cancer: An old intuition with promising potential. World J Clin Oncol 2023; 14:230-246. [PMID: 37583950 PMCID: PMC10424089 DOI: 10.5306/wjco.v14.i7.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/07/2023] [Accepted: 06/21/2023] [Indexed: 07/19/2023] Open
Abstract
It is now well established that the biology of cancer is influenced by not only malignant cells but also other components of the tumour microenvironment. Chronic inflammation and fibrosis have long been postulated to be involved in carcinogenesis. Chronic inflammation can promote tumorigenesis via growth factor/cytokine-mediated cellular proliferation, apoptotic resistance, immunosuppression; and free-radical-induced oxidative deoxyribonucleic acid damage. Fibrosis could cause a perturbation in the dynamics of the tumour microenvironment, potentially damaging the genome surveillance machinery of normal epithelial cells. In this review, we will provide an in-depth discussion of various diseases characterised by inflammation and fibrosis that have been associated with an increased risk of malignancy. In particular, we will present a comprehensive overview of the impact of alterations in stromal composition on tumorigenesis, induced as a consequence of inflammation and/or fibrosis. Strategies including the application of various therapeutic agents with stromal manipulation potential and targeted cancer screening for certain inflammatory diseases which can reduce the risk of cancer will also be discussed.
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Affiliation(s)
- Oliver Oey
- Faculty of Medicine, University of Western Australia, Perth 6009, Crawley NA, Australia
- Department of Medical Oncology, Sir Charles Gardner Hospital, Nedlands 6009, Australia
| | - Angela Felicia Sunjaya
- Institute of Cardiovascular Science, University College London, London WC1E 6DD, United Kingdom
| | - Yasir Khan
- Department of Medical Oncology, St John of God Midland Public and Private Hospital, Midland 6056, WA, Australia
| | - Andrew Redfern
- Department of Medical Oncology, Fiona Stanley Hospital, Murdoch 6150, WA, Australia
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Lee AH, Ghosh D, Koh IL, Dawson MR. Senescence-associated exosomes transfer miRNA-induced fibrosis to neighboring cells. Aging (Albany NY) 2023; 15:1237-1256. [PMID: 36842089 PMCID: PMC10042705 DOI: 10.18632/aging.204539] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 02/13/2023] [Indexed: 02/25/2023]
Abstract
Radiation-induced fibrosis is a common side effect of radiotherapy, which is the most common treatment for cancer. However, radiation also causes p53-mediated cell cycle arrest, prolonged expression of p21, and the development of senescence in normal cells that reside in irradiated tissues. Bone marrow-derived mesenchymal stem cells (MSCs) accumulate in primary tumor sites because of their natural tropism for inflammatory and fibrotic tissues. MSCs are extremely sensitive to low doses of ionizing radiation and acquire senescence as a result of bystander radiation effects. Senescent cells remain metabolically active but develop a potent senescence-associated secretory phenotype (SASP) that correlates to hyperactive secretion of cytokines, pro-fibrotic growth factors, and exosomes (EXOs). Integrative pathway analysis highlighted that radiation-induced senescence significantly enriched cell-cycle, extracellular matrix, transforming growth factor-β (TGF-β) signaling, and vesicle-mediated transport genes in MSCs. EXOs are cell-secreted nanovesicles (a subclass of small extracellular vesicles) that contain biomaterials-proteins, RNAs, microRNAs (miRNAs)-that are critical in cell-cell communication. miRNA content analysis of secreted EXOs further revealed that radiation-induced senescence uniquely altered miRNA profiles. In fact, several of the standout miRNAs directly targeted TGF-β or downstream genes. To examine bystander effects of radiation-induced senescence, we further treated normal MSCs with senescence-associated EXOs (SA-EXOs). These modulated genes related to TGF-β pathway and elevated both alpha smooth muscle actin (protein increased in senescent, activated cells) and Ki-67 (proliferative marker) expression in SA-EXO treated MSCs compared to untreated MSCs. We revealed SA-EXOs possess unique miRNA content that influence myofibroblast phenotypes via TGF-β pathway activation. This highlights that SA-EXOs are potent SASP factors that play a large role in cancer-related fibrosis.
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Affiliation(s)
- Amy H Lee
- School of Engineering, Center for Biomedical Engineering, Brown University, Providence, RI 02912, USA
| | - Deepraj Ghosh
- Molecular Biology, Cell Biology, and Biochemistry, Brown University, Providence, RI 02912, USA
| | - Ivy L Koh
- Molecular Biology, Cell Biology, and Biochemistry, Brown University, Providence, RI 02912, USA
| | - Michelle R Dawson
- School of Engineering, Center for Biomedical Engineering, Brown University, Providence, RI 02912, USA
- Molecular Biology, Cell Biology, and Biochemistry, Brown University, Providence, RI 02912, USA
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5
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Sarode SC, Sharma NK, Sarode G, Sharma M, Radhakrishnan R. Targeting the immune-privileged myofibroblast in oral submucous fibrosis by CAR T-cell therapy. Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.110897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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6
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Gyanchandani A, Shukla S, Vagha S, Acharaya S, Kadu RP. Diagnostic Utility of Cytokeratin 17 Expression in Oral Squamous Cell Carcinoma: A Review. Cureus 2022; 14:e27041. [PMID: 35989819 PMCID: PMC9389021 DOI: 10.7759/cureus.27041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 07/19/2022] [Indexed: 11/21/2022] Open
Abstract
One of the most common oral malignancies is oral squamous cell carcinoma (OSCC). Although the prevalence of oral cancer varies worldwide, it is generally agreed that the oral cavity is a common anatomical site for cancer, depending primarily on the country (and even particular region in some countries) and gender of the patients. Finding diagnostic markers for OSCC is critical for early diagnosis and personalised treatment of patients. Because they are overexpressed in OSCC relative to normal mucosa, cytokeratins (CKs), intermediate filaments of the cytoskeletons, are possibilities for diagnostic markers of OSCC. CK17 should be targeted as a diagnostic marker for OSCC among the CKs, as multiple other CKs have been linked to the disease. This study aims to assess the immuno-histochemistry expression of CK17 and to investigate whether there is a link between CK17 and OSCC differentiation.
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7
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Pritzker KPH, Darling MR, Hwang JTK, Mock D. Oral Potentially Malignant Disorders (OPMD): What is the clinical utility of dysplasia grade? Expert Rev Mol Diagn 2021; 21:289-298. [PMID: 33682567 DOI: 10.1080/14737159.2021.1898949] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Oral epithelial dysplasia is considered a potential histologic precursor of subsequent squamous cell cancer. As standard clinical practice, pathologists grade dysplasia to assess risk for progression to malignancy. Except for the most advanced grade, severe dysplasia, dysplasia grading has failed to correlate well with the risk to develop invasive cancer. The questions of what process dysplasia grading best represents and what clinical utility dysplasia grading may have are explored. AREAS COVERED This narrative review is based on PubMed search with emphasis on papers since 2010. Epithelial dysplasia as a precursor lesion of cancer and dysplasia grading as a risk assessment tool for progression to cancer are discussed. The close clinical association of dysplasia with known carcinogens, alcohol, and tobacco products is presented. EXPERT OPINION Oral epithelial dysplasia is often, associated with prolonged exposure to tobacco and alcohol products. With reduction of carcinogen exposure, dysplasia is known to regress in some cases. It is proposed that histologic dysplasia grade together with macroscopic images of dysplastic clinical lesions be used as an educational tool to incentivize patients to reduce their known carcinogen exposure. This strategy has the potential to reduce lesion progression thereby reducing the disease burden of oral cancer.
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Affiliation(s)
- Kenneth P H Pritzker
- Professor Emeritus, Laboratory Medicine and Pathobiology; Surgery University of Toronto, Toronto, Ontario, Canada.,Proteocyte Diagnostics Inc., Toronto, Canada.,Department of Pathology and Laboratory Medicine, Pathology & Laboratory Medicine Mount Sinai Hospital, Toronto, Canada
| | - Mark R Darling
- Professor, Department of Pathology and Laboratory Medicine, Schulich Faculty of Medicine and Dentistry, Western University London Ontario, Canada
| | | | - David Mock
- Department of Pathology and Laboratory Medicine, Pathology & Laboratory Medicine Mount Sinai Hospital, Toronto, Canada.,Professor, Pathology/Oral Medicine & Dean Emeritus, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.,Department of Dentistry, Dentistry Mount Sinai Hospital, Toronto, Canada
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8
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Genetic Susceptibility and Protein Expression of Extracellular Matrix Turnover-Related Genes in Oral Submucous Fibrosis. Int J Mol Sci 2020; 21:ijms21218104. [PMID: 33143101 PMCID: PMC7663238 DOI: 10.3390/ijms21218104] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 12/14/2022] Open
Abstract
Betel quid (BQ) chewing increased the risk of oral cancer and oral submucous fibrosis (OSMF), an oral premalignant disorder (OPMD) with malignant transformation potential. BQ components such as areca nut (AN), trauma by coarse AN fiber, catechin, copper, alkaloids, stimulated reactive oxygen species (ROS), inflammation and cytotoxicity are suggested to be the contributing factors. They may induce tissue inflammation, proliferation of fibroblasts and collagen deposition, myofibroblast differentiation and contraction, collagen cross-links and inhibit collagen phagocytosis, finally leading to the development of OSMF and oral cancer. These events are mediated by BQ components-induced changes of extracellular matrix (ECM) turnover via regulation of TGF-β1, plasminogen activator inhibitor-1 (PAI-1), cystatin, lysyl oxidase (LOX) and tissue inhibitors of metalloproteinases (TIMPs) and metalloproteinases (MMPs). Genetic susceptibility is also involved in these disease processes. Further understanding the molecular mechanisms of BQ-induced OSMF and oral cancer can be helpful for future disease prevention and treatment.
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Chiang MH, Lee KT, Chen CH, Chen KK, Wang YH. Photobiomodulation therapy inhibits oral submucous fibrosis in mice. Oral Dis 2020; 26:1474-1482. [PMID: 32391600 PMCID: PMC7540580 DOI: 10.1111/odi.13409] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 04/22/2020] [Accepted: 05/03/2020] [Indexed: 12/31/2022]
Abstract
Objectives Oral submucous fibrosis (OSMF) is a chronic inflammatory disease and a potentially malignant oral disorder. However, the best therapeutic treatment for OSMF remains uncertain. Our previous study showed that photobiomodulation (PBM) therapy and forskolin could reduce arecoline‐induced fibrosis reactions via the cAMP pathway. The present study aimed to establish an animal model of areca nut extract (ANE)‐induced OSMF and to evaluate the therapeutic potential of PBM and forskolin for ANE‐induced OSMF. Subjects and methods The mice were divided into five groups. The buccal tissues were harvested for histomorphological analysis and immunoblotting. Results Our results showed that PBM significantly reduced the development of ANE‐induced OSMF, quantified by changes in submucosal layer thickness and collagen deposition. Additionally, PBM could extensively reduce the protein expression of the fibrotic marker genes alpha‐smooth muscle actin (α‐SMA) and connective tissue growth factor (CTGF) in buccal submucous lesions. However, forskolin treatment significantly decreased the protein expression of fibrotic marker genes but slightly decreased the observed histomorphological changes. Conclusions We established an ANE‐induced OSMF mouse model, which also provided a model for the development of a therapeutic treatment for OSMF. The anti‐fibrotic effects of PBM and forskolin may be useful for clinical interventions.
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Affiliation(s)
- Min-Hsuan Chiang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,College of Medicine, Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kun-Tsung Lee
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Oral Hygiene, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Hsin Chen
- College of Medicine, Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Physical Medicine and Rehabilitation, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ker-Kong Chen
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yan-Hsiung Wang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,College of Medicine, Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
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10
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Gadbail AR, Chaudhary MS, Sarode SC, Gondivkar SM, Belekar L, Mankar-Gadbail MP, Dande R, Tekade SA, Yuwanati MB, Patil S. Ki67, CD105 and α-smooth muscle actin expression in disease progression model of oral submucous fibrosis. ACTA ACUST UNITED AC 2019; 10:e12443. [PMID: 31325233 DOI: 10.1111/jicd.12443] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/30/2019] [Accepted: 07/03/2019] [Indexed: 02/06/2023]
Abstract
AIM The aim of this study was to investigate the expression of Ki67, CD105 and α-smooth muscle actin (α-SMA) expression in oral submucous fibrosis (OSF) and oral squamous cell carcinoma in the background of OSF (OSCC-SMF). METHODS The study was carried out on paraffin-embedded tissues of 30 normal oral mucosa (NOM), 50 OSF cases and 105 OSCC-SMF. The immunohistochemistry was carried out to evaluate the expression of Ki67, CD105 and α-SMA antigen. RESULTS Ki67 labelling index (LI), CD105 and α-SMA expression showed increasing trend from NOM, low-risk epithelial dysplasia (LRED), high-risk epithelial dysplasia (HRED), well-differentiated squamous cell carcinoma (WDSCC), moderately differentiated squamous cell carcinoma to poorly differentiated squamous cell carcinoma. However, there was no significant difference of α-SMA expression between HRED and WDSCC. In OSCC-SMF, Ki67 LI, CD105 and α-SMA were significantly higher in advanced clinical TNM stage, metastasis and less than 3 years patient survival as compared with early clinical TNM stage, non-metastasis and 3 years or more patient survival. CONCLUSION Ki67 LI, α-SMA and CD105 expression alone or together correspond with the disease progression model of SMF. Hence, expression of these markers can be used as a predictive marker of clinical outcome of OSCC-SMF.
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Affiliation(s)
- Amol R Gadbail
- Department of Dentistry, Indira Gandhi Government Medical College and Hospital, Nagpur, India
| | - Minal S Chaudhary
- Department of Oral Pathology and Microbiology, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Medical Sciences, Sawangi, India
| | - Sachin C Sarode
- Department of Oral Pathology and Microbiology, Dr. D. Y. Patil Dental College and Hospital, Pune, India
| | - Shailesh M Gondivkar
- Department of Oral Medicine and Radiology, Government Dental College and Hospital, Nagpur, India
| | - Lalita Belekar
- Department of Dentistry, Indira Gandhi Government Medical College and Hospital, Nagpur, India
| | | | - Ravi Dande
- Department of Dentistry, Indira Gandhi Government Medical College and Hospital, Nagpur, India
| | - Satyajit A Tekade
- Department of Oral Pathology and Microbiology, Modern Dental College and Research Center, Gandhinagar, India
| | - Monal B Yuwanati
- Department of Oral Pathology and Microbiology, People's Dental College and Hospital, Bhopal, India
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan, Saudi Arabia
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